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Replacing sapphire with silicon could lead to more-affordable LEDs.
A new lighting system uses network cables, instead of electrical wires, to supply power and carry data.
A new approach avoids flexible electronics.
Innovative displays that let more light reach the viewer could double the battery life of handheld devices.
A new type of nanometer-size semiconductor crystal that can amplify light marks an important step toward cheap, tunable lasers.
A nanowire grid could help make large organic LED displays practical.
Researcher says “it’s like getting continuous tweets from the cells rather than an occasional postcard.”
Solar-cell manufacturing techniques could yield LEDs that require 20 percent less energy.
Biodegradable circuits could enable better neural interfaces and LED tattoos.